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<?php |
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/** |
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* File containing the class {@see \AppUtils\RGBAColor\ColorChannel}. |
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* |
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* @package Application Utils |
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* @subpackage RGBAColor |
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* @see \AppUtils\RGBAColor\ColorChannel |
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*/ |
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declare(strict_types=1); |
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namespace AppUtils\RGBAColor; |
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use AppUtils\RGBAColor\ColorChannel\AlphaChannel; |
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use AppUtils\RGBAColor\ColorChannel\EightBitChannel; |
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use AppUtils\RGBAColor\ColorChannel\HexadecimalChannel; |
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use AppUtils\RGBAColor\ColorChannel\HueChannel; |
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use AppUtils\RGBAColor\ColorChannel\BrightnessChannel; |
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use AppUtils\RGBAColor\ColorChannel\PercentChannel; |
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use AppUtils\RGBAColor\ColorChannel\SaturationChannel; |
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use AppUtils\RGBAColor\ColorChannel\SevenBitChannel; |
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/** |
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* Abstract base class for individual color channels. |
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* Acts as factory class for channels with the following |
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* methods: |
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* |
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* - {@see self::hexadecimal()} |
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* - {@see self::eightBit()} |
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* - {@see self::sevenBit()} |
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* - {@see self::percent()} |
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* - {@see self::alpha()} |
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* - {@see self::hue()} |
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* - {@see self::saturation()} |
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* - {@see self::brightness()} |
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* |
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* @package Application Utils |
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* @subpackage RGBAColor |
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* @author Sebastian Mordziol <[email protected]> |
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* |
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* @see AlphaChannel |
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* @see EightBitChannel |
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* @see HexadecimalChannel |
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* @see PercentChannel |
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* @see SevenBitChannel |
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*/ |
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abstract class ColorChannel |
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{ |
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/** |
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* @return mixed |
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*/ |
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abstract public function getValue(); |
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/** |
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* @return int 0 to 255 |
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*/ |
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abstract public function get8Bit() : int; |
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/** |
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* @return int 0 to 127 |
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*/ |
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abstract public function get7Bit() : int; |
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/** |
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* @return float 0.0 to 1.0 |
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*/ |
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abstract public function getAlpha() : float; |
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/** |
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* @return float 0 to 100 |
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*/ |
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abstract public function getPercent() : float; |
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public function getPercentRounded() : int |
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{ |
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return (int)round($this->getPercent()); |
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} |
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public function getHexadecimal() : string |
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{ |
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return UnitsConverter::int2hex($this->get8Bit()); |
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} |
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/** |
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* @return ColorChannel |
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*/ |
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abstract public function invert() : ColorChannel; |
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/** |
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* @param string|HexadecimalChannel $hex A double or single hex character. e.g. "FF". |
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* For a single character, it is assumed it should |
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* be duplicated. Example: "F" > "FF". If an existing hexadecimal |
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* channel instance is given, this is returned. |
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* @return HexadecimalChannel |
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* @throws ColorException |
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*/ |
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public static function hexadecimal($hex) : HexadecimalChannel |
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{ |
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if($hex instanceof HexadecimalChannel) { |
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return $hex; |
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} |
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return new HexadecimalChannel($hex); |
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} |
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/** |
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* @param int|EightBitChannel $value 0 to 255 |
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* @return EightBitChannel |
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*/ |
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public static function eightBit($value) : EightBitChannel |
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{ |
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if($value instanceof EightBitChannel) { |
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return $value; |
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} |
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return new EightBitChannel($value); |
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} |
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/** |
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* @param int|SevenBitChannel $value 0 to 127 |
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* @return SevenBitChannel |
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*/ |
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public static function sevenBit($value) : SevenBitChannel |
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{ |
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if($value instanceof SevenBitChannel) { |
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return $value; |
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} |
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return new SevenBitChannel($value); |
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} |
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/** |
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* @param int|float|PercentChannel $percent 0 to 100 |
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* @return PercentChannel |
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*/ |
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public static function percent($percent) : PercentChannel |
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{ |
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if($percent instanceof PercentChannel) { |
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return $percent; |
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} |
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return new PercentChannel($percent); |
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} |
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/** |
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* @param float|AlphaChannel|NULL $alpha 0.0 to 1.0 |
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* @return AlphaChannel |
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*/ |
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public static function alpha($alpha) : AlphaChannel |
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{ |
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if($alpha instanceof AlphaChannel) { |
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return $alpha; |
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} |
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if($alpha === null) { |
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$alpha = 0.0; |
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} |
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return new AlphaChannel($alpha); |
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} |
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/** |
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* @param int|float|HueChannel $hue 0 to 360 |
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* @return HueChannel |
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*/ |
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public static function hue($hue) : HueChannel |
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{ |
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if($hue instanceof HueChannel) { |
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return $hue; |
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} |
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return new HueChannel($hue); |
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} |
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/** |
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* @param int|float|BrightnessChannel $brightness 0 to 100 |
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* @return BrightnessChannel |
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*/ |
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public static function brightness($brightness) : BrightnessChannel |
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{ |
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if($brightness instanceof BrightnessChannel) { |
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return $brightness; |
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} |
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return new BrightnessChannel($brightness); |
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} |
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/** |
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* @param int|float|SaturationChannel $saturation 0 to 100 |
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* @return SaturationChannel |
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*/ |
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public static function saturation($saturation) : SaturationChannel |
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{ |
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if($saturation instanceof SaturationChannel) { |
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return $saturation; |
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} |
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return new SaturationChannel($saturation); |
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} |
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} |
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